C / C++ / MFC Discussion Boards

Re: How can I convert to TIFF file format?

Cris13-Jul-06 2:00

Cris

13-Jul-06 2:00

But using GDI+, can I convert any file format to tiff? Or only image file to tiff?

Re: How can I convert to TIFF file format?

Joe Woodbury13-Jul-06 8:19

Joe Woodbury

13-Jul-06 8:19

I don't understand your question since GDI+ only handles image files.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

Re: How can I convert to TIFF file format?

earl12-Jul-06 12:42

earl

12-Jul-06 12:42

look at libtiff. libjpeg is also free.

Re: How can I convert to TIFF file format?

Cris13-Jul-06 1:45

Cris

13-Jul-06 1:45

Ok, but libtiff only convert image file to tiff file. I need to convert any file (readable) to tiff format.

[]'s

Re: How can I convert to TIFF file format?

earl13-Jul-06 5:12

earl

13-Jul-06 5:12

Right, which means you're going to have to do some work.

Starting with libjpeg to decompress jpegs and libpng to decompress pngs. gifs are easy to read, and bmps are trivial; those should cover most image formats.

Otherwise, if you don't need to build this into your program, irfanview will probably do what you want.

earl

Please,help me with jar-files in java

beganovic_swe12-Jul-06 9:37

beganovic_swe

12-Jul-06 9:37

Hello!

I have tried to create a jar-file in MS-DOS on this way:

jar cmf MittProg.txt MittProg.jar *.class

but... when I click on "enter" I see this:
jar is not a command, program or program file.

I have been on: java.sun.com/getjava
and I did install JRE but nothing happens.

what should I do, or how can I on some another way create a jar-file?

Please, help me...I will be very thankful! Smile | :)

/dino

beganovic_swe

Re: Please,help me with jar-files in java

Christian Graus12-Jul-06 9:43

Christian Graus

12-Jul-06 9:43

I'm not sure why you expect people on an MFC forum to have the answer to this ?

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog

Re: Please,help me with jar-files in java

led mike12-Jul-06 9:49

led mike

12-Jul-06 9:49

Christian Graus wrote:
I'm not sure why

Maybe his garbage collector hasn't run yet... be patient. Smile | :)

"Just about every question you've asked over the last 3-4 days has been "urgent". Perhaps a little planning would be helpful?"
Colin Angus Mackay in the C# forum

led mike

Re: Please,help me with jar-files in java

beganovic_swe12-Jul-06 22:33

beganovic_swe

12-Jul-06 22:33

I had to write my question somewhere because I can not see any Java- forum...
It was more natural to write here than in e.g. html-forum because Java is a programming language too.

Where can I ask about Java? Please tell me?

beganovic_swe

Crash in MFC extension DLL [modified]

act_x12-Jul-06 8:23

act_x

12-Jul-06 8:23

i am using some JNI code and talking to a MFC extension DLL

I am using Visual Studio 6 . I get a crash when i try to create a window in one of the exposed functions . The crash seems to be in afxwin1.inl line 19 after the call to CreateEx

CHiddenWindow hiddenWnd ; <br />
<br />
extern "C" int APIENTRY<br />
DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)<br />
{<br />
	// Remove this if you use lpReserved<br />
	UNREFERENCED_PARAMETER(lpReserved);<br />
<br />
	if (dwReason == DLL_PROCESS_ATTACH)<br />
	{<br />
		TRACE0("DLLWRAPPER.DLL Initializing!\n");<br />
		<br />
		// Extension DLL one-time initialization<br />
		if (!AfxInitExtensionModule(DllWrapperDLL, hInstance))<br />
			return 0;<br />
<br />
		// Insert this DLL into the resource chain<br />
		// NOTE: If this Extension DLL is being implicitly linked to by<br />
		//  an MFC Regular DLL (such as an ActiveX Control)<br />
		//  instead of an MFC application, then you will want to<br />
		//  remove this line from DllMain and put it in a separate<br />
		//  function exported from this Extension DLL.  The Regular DLL<br />
		//  that uses this Extension DLL should then explicitly call that<br />
		//  function to initialize this Extension DLL.  Otherwise,<br />
		//  the CDynLinkLibrary object will not be attached to the<br />
		//  Regular DLL's resource chain, and serious problems will<br />
		//  result.<br />
		new CDynLinkLibrary(DllWrapperDLL);<br />
		<br />
	}<br />
	else if (dwReason == DLL_PROCESS_DETACH)<br />
	{<br />
		TRACE0("DLLWRAPPER.DLL Terminating!\n");<br />
		// Terminate the library before destructors are called<br />
		AfxTermExtensionModule(DllWrapperDLL);<br />
	}<br />
<br />
<br />
	<br />
	<br />
	<br />
	return 1;   // ok<br />
}<br />
<br />
JNIEXPORT jint JNICALL Java_Blah1<br />
  (JNIEnv *pEnv, jclass)<br />
{<br />
..<br />
hiddenWnd.CreateEx(0 ,::AfxRegisterWndClass( NULL)  , NULL , WS_OVERLAPPED , CRect(10,10,10,10),NULL , 0);<br />
..<br />
<br />
}

Any ideas on this ?

Engineering is the effort !

-- modified at 14:23 Wednesday 12th July, 2006

Re: Crash in MFC extension DLL

led mike12-Jul-06 9:14

led mike

12-Jul-06 9:14

Well you likely do not have the prerequisit envornment for creating a window since you are running in a Java Console Process! No WinMain no message queue etc.

"Just about every question you've asked over the last 3-4 days has been "urgent". Perhaps a little planning would be helpful?"
Colin Angus Mackay in the C# forum

led mike

Invoke Self-Registration of an ActiveX

Christopher Stratmann12-Jul-06 8:11

Christopher Stratmann

12-Jul-06 8:11

I have a .ocx file that I am trying to install on many computers. I have found code in MSDN which shows how to register ActiveX in Visual 6.0 C++. http://msdn2.microsoft.com/en-us/library/ms177531.aspx[^] I successfully put this code into my application so before my program starts up it checks the registry to see if the activeX is installed and if it is not then it will copy the file to the C:\ and install it. This is working for admins only right now.

I copy it to the C:\ and not the system32 folder because the user that is logged on may not have admin rights to do so.

My problem is installing ActiveX will not work if the user doesn't have admin rights. I have tried with my program and using "regsvr32.exe C:\my.ocx" which returns and error stating "DllRegisterServer in C:\my.ocx failed. Return code was: 0x8002801c".

I know there is a function where I can run a batch file as another user (like an admin user) but I dont have a global admins userid and password.

Is there anyway to register an ActiveX with a less privileged user?

Thanks Chris

Re: Invoke Self-Registration of an ActiveX

David Crow12-Jul-06 9:05

David Crow

12-Jul-06 9:05

chris175 wrote:
I copy it to the C:\ and not the system32 folder because the user that is logged on may not have admin rights to do so.

You aren't going to leave it this way, are you?

chris175 wrote:
My problem is installing ActiveX will not work if the user doesn't have admin rights.

So can't you just assign those (rights) via AdjustTokenPrivileges()?

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Re: Invoke Self-Registration of an ActiveX

Christopher Stratmann12-Jul-06 9:55

Christopher Stratmann

12-Jul-06 9:55

I looked that the list of (rights) http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/privilege_constants.asp[^] and I am having trouble with which one to turn on. I have tried SE_BACKUP_NAME and SE_LOAD_DRIVER_NAME and they dont seem to work.

I also found a class that I think helps with the setting of privileges. http://www.codeproject.com/system/NtRegistry.asp[^]. I used the function EnablePrivilege with these two setting and still no luck?

I dont know what to do about putting them on the C:\. I could put it in the "All Users\Documents" folder via CSIDL_COMMON_DOCUMENTS. Do you have any better ideas?

Chris

Re: Invoke Self-Registration of an ActiveX

Eric Dahlvang12-Jul-06 11:34

Eric Dahlvang

12-Jul-06 11:34

Apparently Vista will have this ability: clickety[^]

--EricDV Sig---------
Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them.
- Laurence J. Peters

Checking if a window is minimized

slippnslide12-Jul-06 7:35

slippnslide

12-Jul-06 7:35

Since I didn't want to use MFC after reading all the tutorials on here for minimizing an application to the system tray, I did some research and made it so my program has a tray icon. Now, my only problem is, how do you detect when a window's minimize button is pressed in Win32? I've scoured MSDN and asked on a few forums, but nobody seems to be willing to give a direct answer.

Re: Checking if a window is minimized

David Crow12-Jul-06 7:38

David Crow

12-Jul-06 7:38

See IsIconic().

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Re: Checking if a window is minimized

slippnslide12-Jul-06 8:50

slippnslide

12-Jul-06 8:50

I got it to work another way, but this is nice to know. Thanks.

Now I have another problem. Apparantly it doesn't respond to this:

[code]case WM_TRAYMESSAGE:
{
if(lParam == WM_LBUTTONDOWN)
{
ShowWindow(hWnd, SW_SHOWDEFAULT);
}
} break;[/code]

Any ideas? Confused | :confused:

Re: Checking if a window is minimized

David Crow12-Jul-06 9:00

David Crow

12-Jul-06 9:00

slippnslide wrote:
I got it to work another way...

What other way is there to check if a window is minimized?

slippnslide wrote:
[code]case WM_TRAYMESSAGE:

Is this a User-Defined Message (UDM)? If so, where is it sent from? Without seeing the code in context, it's going to be near impossible to offer anything useful.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Re: Checking if a window is minimized

slippnslide12-Jul-06 9:10

slippnslide

12-Jul-06 9:10

DavidCrow wrote:
What other way is there to check if a window is minimized?

I use this code:

case WM_SIZE:<br />
         {<br />
             if(wParam == SIZE_MINIMIZED)<br />
             {<br />
                 ShowWindow(hWnd, SW_HIDE);<br />
             }<br />
         } break;

DavidCrow wrote:
Is this a User-Defined Message (UDM)? If so, where is it sent from? Without seeing the code in context, it's going to be near impossible to offer anything useful.

Yes, it is. I was following various articles on here and tried various paramters for it. What I have it now at is this:
#define WM_TRAYMESSAGE (WM_USER + 1)

And this is the code I have for filling the structs for NOTIFYICONDATA:

    nid.cbSize = sizeof(NOTIFYICONDATA);<br />
    nid.hWnd = hWnd;<br />
    nid.uID = 0;<br />
    nid.uFlags = NIF_ICON | NIF_TIP;<br />
    nid.uCallbackMessage = WM_TRAYMESSAGE;<br />
    HICON hIco = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MYICON));<br />
    nid.hIcon = hIco;<br />
    strncpy( nid.szTip, "App name", 64 );<br />
<br />
    ShowWindow(hWnd, nCmdShow);<br />
    Shell_NotifyIcon(NIM_ADD, &nid);<br />
<br />
    if(hIco) { DestroyIcon(hIco); }

If you need any more code, I'll post it for you.

Re: Checking if a window is minimized

David Crow12-Jul-06 10:01

David Crow

12-Jul-06 10:01

So which of WM_TRAYMESSAGE or WM_LBUTTONDOWN are you not receiving?

slippnslide wrote:
Shell_NotifyIcon(NIM_ADD, &nid);

What does this return?

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Re: Checking if a window is minimized

slippnslide12-Jul-06 10:05

slippnslide

12-Jul-06 10:05

DavidCrow wrote:
So which WM_TRAYMESSAGE or WM_LBUTTONDOWN are you not receiving?

That's what I'm not sure of. How would I test?

DavidCrow wrote:
slippnslide wrote:
Shell_NotifyIcon(NIM_ADD, &nid);

What does this return?

Well, adding the tray icon works fine. The icon shows up and can be removed just fine.

Re: Checking if a window is minimized

David Crow12-Jul-06 10:29

David Crow

12-Jul-06 10:29

slippnslide wrote:
How would I test?

A breakpoint. The debugger.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Re: Checking if a window is minimized

slippnslide12-Jul-06 11:16

slippnslide

12-Jul-06 11:16

The debugger doesn't seem to want to work. I might have to try a different IDE and see if it will make the compiler build the file with debugging info. When trying to get the debugger to work, this warning started to come up and it is now coming up all the time when I build my project.

<quote>Project : Win32 Application
Compiler : GNU GCC Compiler (called directly)
Directory : C:\Documents and Settings\John\Desktop\derp\
--------------------------------------------------------------------------------
Switching to target: default
Compiling: main.cpp
main.cpp: In function `int WinMain(HINSTANCE__*, HINSTANCE__*, CHAR*, int)':
main.cpp:57: warning: passing NULL used for non-pointer converting 1 of `HWND__* CreateWindowExA(DWORD, const CHAR*, const CHAR*, DWORD, int, int, int, int, HWND__*, HMENU__*, HINSTANCE__*, void*)'
Compiling: Win32GUI.rc
Linking executable: C:\Documents and Settings\John\Desktop\derp\Win32GUI.exe
Process terminated with status 0 (0 minutes, 0 seconds)
0 errors, 1 warnings

This is the code it is pointing to:

hWnd = CreateWindowEx(NULL,<br />
                      "WindowClass1",    // name of the window class<br />
                      "Our First Windowed Program",   // title of the window<br />
                      WS_OVERLAPPEDWINDOW,    // window style<br />
                      300,    // x-position of the window<br />
                      300,    // y-position of the window<br />
                      500,    // width of the window<br />
                      400,    // height of the window<br />
                      NULL,    // we have no parent window, NULL<br />
                      NULL,    // we aren't using menus, NULL<br />
                      hInstance,    // application handle<br />
                      NULL);    // used with multiple windows, NULL

The last NULL in the list is the line the compiler points to. Could this warning have an affect on the program not detecting when I click the icon?

Re: Checking if a window is minimized

David Crow13-Jul-06 2:31

David Crow

13-Jul-06 2:31

slippnslide wrote:
The last NULL in the list is the line the compiler points to. Could this warning have an affect on the program not detecting when I click the icon?

I highly doubt it.

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

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